Eliashberg theory of superconductivity and inelastic rare-earth impurity scattering in the filled skutterudite La1−xPrxOs4Sb12
Jun Chang, Ilya Eremin, Peter Thalmeier, Peter Fulde
DOI 10.1103/PhysRevB.76.220510 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We study the influence of inelastic rare-earth impurity scattering on electron-phonon-mediated superconductivity and mass renormalization in (La1−xPrx)Os4Sb12 compounds. Solving the strong-coupling Eliashberg equations we find that the dominant quadrupolar component of the inelastic scattering on Pr impurities yields an enhancement of the superconducting transition temperature Tc in LaOs4Sb12 and increases monotonically as a function of Pr concentration. The calculated results are in good agreement with the experimentally observed Tc(x) dependence. Our analysis suggests that phonons and quadrupolar excitations cause an attractive electron interaction which results in the formation of Cooper pairs and singlet superconductivity in PrOs4Sb12.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| LaOs4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.74 | Pressure not reported | unknown |
| PrOs4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.85 | Pressure not reported | unknown |
| LaOs4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.74 | Pressure not reported | unknown |
| PrOs4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.85 | Pressure not reported | unknown |
Similar papers
Multiband superconductivity in the correlated electron filled skutterudite system Pr1−xCexPt4Ge12
similarity 0.95Y. P. Singh et al.
Source status unknown — claims are unverified
Multiband Superconductivity in the Heavy Fermion Compound PrOs4Sb12
similarity 0.94G. Seyfarth et al.
Source status unknown — claims are unverified
Sb-NQR probe for superconducting properties in the Pr-based filled-skutterudite compound PrRu4Sb12
similarity 0.94M. Yogi et al.
Source status unknown — claims are unverified
S123b-NQR study of unconventional superconductivity in the filled skutterudite heavy-fermion compound PrOs4Sb12 under high pressure up to 3.82 GPa
similarity 0.93S. Kawasaki et al.
Source status unknown — claims are unverified
Eliashberg theory of superconductivity and inelastic rare-earth impurity scattering in filled skutterudite LaPrOsSb
similarity 0.93Jun Chang et al. · 2007 · arXiv:0709.3849
Source status unknown — claims are unverified
A theoretical study of tunneling conductance in PrOs4Sb12 superconducting junctions
similarity 0.93Yasuhiro Asano et al.
Source status unknown — claims are unverified